DocumentCode :
3632737
Title :
Data processing in studying the temporomandibular joint, using MR imaging and sonographic techniques
Author :
Ondrej Liberda;Karel Bartusek;Zdenik Smekal;Jan Mikulka
Author_Institution :
Department of Oral and Maxillofacial Surgery, The Faculty Hospital Brno, Faculty of Medicine, Masaryk University, Komenskeho nam. 2, 662 43, Czech Republic
fYear :
2009
Firstpage :
1
Lastpage :
6
Abstract :
The temporomandibular joint is one of the most complicated joints in the human body. Diagnosing its disorders is difficult because the pain is mistakenly taken for toothache, pain in the jaw bones, etc. The paper deals with a post-processing tomographic examination of temporomandibular joint. An interesting post-processing method was used to increase the contrast related to relaxation time T2. Both increasing the contrast and enhancing the arthritic region were realized by processing two MR images in different echo-times. The enhancement rate is realized on the basis of subjective MR image evaluation by the surgeon. Magnetic resonance images (MRIs) are of very low resolution and contrast. An appropriate algorithm has been found, which consists of pre-processing the image by a smoothing filter, focusing, and four-phase level set segmentation. This method segments the image on the basis of the intensity of respective regions and is thus suitable to be applied to the above MR images, in which no sharp edges occur.
Keywords :
"Data processing","Acoustic imaging","Joints","Pain","Image segmentation","Humans","Bones","Tomography","Surges","Magnetic resonance"
Publisher :
ieee
Conference_Titel :
Digital Signal Processing, 2009 16th International Conference on
ISSN :
1546-1874
Print_ISBN :
978-1-4244-3297-4
Electronic_ISBN :
2165-3577
Type :
conf
DOI :
10.1109/ICDSP.2009.5201218
Filename :
5201218
Link To Document :
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